  module param_m

  implicit none

  public 

  real, allocatable :: x(:), y(:), z(:)
  real :: l_ref

  real :: xmin, xmax
  real :: ymin, ymax
  real :: zmin, zmax

  integer :: nx, ny, nz
  integer :: nx_g, ny_g, nz_g
  integer :: nsc
  integer :: periodic_x, periodic_y, periodic_z
  integer :: numdim

  end module param_m